It's not possible to enable statistics for datasource. When enable statistics are enabled by clicking in webconsole (Configuration: Subsystems Subsystem: Datasources Type: Non-XA Datasource: ExampleDS) I'm getting error The Data Source ExampleDS is still enabled. Please disabled it, to make changes to the configuration. (see attached images).

Enabling statistics should be free to be done either without the reload (for sure without enabling/disabling a datasource).

From jboss-cli.sh

            "statistics-enabled" => {
                "type" => BOOLEAN,
                "description" => "define if runtime statistics is enabled or not.",
                "expressions-allowed" => true,
                "nillable" => true,
                "default" => false,
                "access-type" => "read-write",
                "storage" => "configuration",
                "restart-required" => "no-services"
            },